Barclays' shares tumble at fines fear

Fears over the potential for multibillion-pound fines and damages from the industry's rate-rigging scandal have sent banks' shares tumbling.

Barclays plunged as much as 17%, wiping about £4 billion from its market value, as concerns mounted that the £290 million fines imposed on the bank could be dwarfed by the cost of lawsuits.